html,
body {
  margin: 0;
  overflow-x: hidden;
}
a {
  text-decoration: none;
}
a, button {
  cursor: pointer;
}
ul li {
  list-style: none;
}
.row {
  display: flex;
  flex-direction: row;
  align-items: center;
}
.col {
  display: flex;
  flex-direction: column;
  align-items: center;
}

nav {
  height: 80px;
  justify-content: space-around;
  background: #fff;
  z-index: 9;
}

nav ul {
  list-style: none;
  justify-content: space-between;
}

nav ul a {
  text-decoration: none;
  font-size: 18px;
  color: #333333;
  display: inline-block;
  position: relative;
  margin-left: 62px;
}
nav .active {
  color: #e07f00;
  font-weight: bold;
}
.nav-img-link {
  display: flex;
  flex-direction: row;
  align-items: center;
}
.page-title {
  height: 360px;
  width: 100%;
  background-position: center center;
  color: #fff;
  position: relative;
}
.page-title h2 {
  position: absolute;
  left: 100px;
  top: 50%;
  transform: translateY(-50%);
  font-weight: normal;
  font-size: 30px;
  letter-spacing: 3px;
  margin: 0;
}

.logo-img {
  height: 37px;
}

.footer {
  background: #272727;
}
.footer .contain {
  width: 80%;
  margin: 0 auto;
  padding: 20px 0;
}
.footer .topbar {
  width: 100%;
  border-bottom: 1px solid #6c7073;
  justify-content: space-between;
}
.footer .topbar a {
  color: #64686b;
  padding-left: 30px;
  text-align: center;
}
.footer .copyright {
  color: #64686b;
  align-items: flex-start;
  margin-top: 30px;
}
.footer .copyright p {
  margin: 0;
  padding: 0;
  font-size: 16px;
  line-height: 30px;
}
.footer .copyright .copyright-text {
  margin-top: 20px;
}
.page-part-title {
  color: #e07f00;
  font-size: 30px;
  margin: 0;
  padding: 0;
  letter-spacing: 4px;
  margin-bottom: 10px;
  text-align: center;
}
.phone-nav {
  display: none;
}
/* pc端样式 */
@media screen and (min-width: 1025px) {
  body,html {
    min-width: 1300px;
  }
  html {
    overflow: auto;
  }
}

/* ipad prod样式 ipad样式 */
@media screen and (max-width: 1024px) and (min-width: 768px) {
}
/* 大部分手机样式 */
@media screen and (max-width: 768px) {
  .nav {
    position: relative;
    height: 1.0rem;
    justify-content: space-between;
    box-sizing: border-box;
    z-index: 999;
  }
  .nav ul {
    position: absolute;
    top: 1.0rem;
    background: rgba(255,255,255,0.9);
    margin: 0;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    box-sizing: border-box;
    height: auto;
    padding: 0.2rem 0;
    display: none;
  }
  .nav ul li {
    width: 100%;
    text-align: center;
    height: auto;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: row;
    align-items: center;
  }
  .nav ul li a {
    margin: 0;
    width: 100%;
    text-align: center;
    height: 1.2rem;
    line-height: 1.2rem;
    font-size: 0.3rem;
  }
  .logo-img {
    height: 0.5rem;
    padding-left: 0.2rem;
  }
  .phone-nav {
    display: none;
    height: 0.5rem;
    padding-right: 0.2rem;
  }
  .phone-nav.active {
    display: block;
  }
  .footer .topbar {
    flex-wrap: wrap;
  }
  .footer .contain {
    width: 88%;
  }
  .footer .topbar ul {
    margin: 0;
    padding: 0;
    font-size: 0.3rem;
    flex-wrap: wrap;
    justify-content: space-between;
    width: 100%;
    padding: 0.24rem 0;
    margin-top: 0.24rem;
  }
  .footer .topbar a {
    padding-left: 0;
  }
  .footer .copyright p {
    font-size: 0.28rem;
  }
  .page-title h2 {
    left: 1rem;
    font-size: 0.5rem;
  }
  .footer .copyright p {
    line-height: normal;
  }
}
/* 小屏幕手机 */
@media screen and (max-width: 320px) {
}
